Spreading device for binders



Sept. 16 1924. 7 1,508,695

. 1.. E2. HILL SPREADING DEVICE FOR BINDERS Filed Feb. -28 1923 vwemtoz 3:313 ar/foam Patented Sept. 16, 1924.

UNITED STATES A assa PATENT Pris" LEON ELLSWORTH HILL, or PONTIAC, MICHIGAN, ASSIGNOR To GENERAL Morons CORPORATION, or DETROIT, MICHIGAN, A conroRArIoN or DELAWARE.

SPREADING DEVICE FOR BINDER-S.

Application filed February 28, 1923. Serial No. 621,961.

To aZZ whom it may concern:

Be it known that I, LEON ELLSWORTH HILL, a citizen of the United States, and a resident of Pontiac, county of Oakland, and State of Michigan, have invented certain new and useful Improvements in Spreading Devices for Binders, of which the following is a full, clear, concise, and exact description, such as will enable others skilled in the art to which the invention relates to make and use the same, reference being made therein to the accompanying, drawings, which form a part of this specification.

This invention relates to devices for handling welt strips carrying strips of piping. as for example strips of piping arranged to hide the heads of tacks or other fastenings used in attaching the welt strips, and is illustrated as embodied in a device for progressively spreading such strips of piping apart.

In handling welt strips having such piping, as for example in attaching them to automobile bodies, it has been necessary to turn back the strips of piping to spread them apart, usually with one finger, to facilitate the insertion of the welt-attaching fastenings and for other purposes. An object of the present invention is to eliminate the necessity of thus turning the strips of pip-- ing back by hand, by providing a novel device which is movable along a welt strip and which is provided with means progressively to turn back the piping.

One form of such device is formed with a member slidably embracing a welt strip,

and with oppositely-disposed parts to en-- I gage a pair of strips of piping on thewelt strip and progressively spread them apart. I

In the illustrated embodiment of the invention the welt-embracing member and the plow or piping-spreading parts are inte gral, as it is in practice convenient to make the device out of a piece of sheet metal by arranging the central part to engage the lower face of a welt strip, and by bending the sides upwardly and inwardly and. downwardly to form the above described plow or spreading parts.

Whether or not the plow members are in tegral with the welt embracing member, I prefer that they should be arranged with their forward ends adjacent one another in the center of the welt strip, between the strips of piping, and with their rearends spaced a substantial distance apart, to spread the strips of piping as described The above and other featuresof the in-' vention, lncluding the specific form of va-- rious parts of the device, will be apparent from the following description of the em bodiment of the invention illustrated, in the accompanying drawings, in which;':

Fig. l-is a perspective-view of'the device being used in attaching :a welt strip;-

Fig. 2is' a side elevation, partlybroken away of the'device; I

Fig. 3 is an end elevation of the device;

Fig. 4 is a view showing a pieceof a. welt strip with the strips of piping spread apart. just after the insertion'of a fastening; and

Fig. 5 is a corresponding view of the welt strip after the strips ofpipinghave sprung back together to hide the fastening In the specific form shown in the draw ings, the device is made from a single stamping of sheet metal. The central part 10 oi the sheet metal engages the bottom surface of the welt strip 12,.and the opposite sides 14 and 16 are bent upwardly and inwardly and downwardly to form plow or spread ing parts. These parts engage respectively strips 18 and 20 of piping made by turning the sides of the bottom lamination of welt strip 12 over on themselves, enclosing wires or other padding if desired, and stitching at 22 and 24 in such a manner that the strips of piping tend to spring toward one another to hide fastenings 26 attaching the welt strip to an automobile body 28 or some other ob- 'ect.

1 It will be observed that the forward ends of plow or spreading parts 14 and 16 are im mediately adjacent one another, between the strips of piping, and that their rear ends are spaced a substantial distance apart, to spread the stripsof piping and thus facilitate the insertion of fastenings 26.

I find it convenient to bend one end of the piece of sheet metal into a handle 30, to .provide means for moving the device progressivel along a welt strip. As shown in the drawings if handle 30 is turned upwardly it is perforated at 32 for the passage of the welt strip.

In operation, the device is threaded on a welt strip as shown in Fig. 1, with strips 18 and 20 of piping embraced respectively by plow or spreading parts 14 and 16. The

device is thenzmovedwprog qessively along the Welt strip; spreadin the? strips: of piping temporarilyapart while fastenings 26 are pel iqdically insented. Them so spread apart, the stifip sflof piping; ap pear as. in. Fig,

a10ng, the strips of piping sp ri ig back to adihg-de vice comp is-i-ng-a piece ot i'sl eta having/cent l porltionvto en'g e 1 m-wofiweltnstrip andxh a-i side'sa-ben-tw iip'warcllfy' and in v v p downwardly to form oppositelydisposejd 31 ll pantszto spfiead lap'ai't a; pain ofst'vipsgo "1- pingleai fied' by the w'eilt strip. 2. A spreading devicecomprisinga piece ofs he emet i: h a ving centrali pofition to engage the bottom of a Welt, strip:and having. Opposite sides bent upwardly and inweirdly and downwardly to form oppositelydisposed plow parts to spread apart a pair of strips ofpip'ing carried. by .theWelt stfip and having one end bent into a, handle for InOYingthe device progressively along the welt strip. a

A spreading device as defined by claim 2 in which the handle is bent upwardly above the Welt strip and is perforated-for the passage of the Welt strip.-

l. A spreadingdevice comprising a piece efi metals having a portion to engage the/hottem} of a welt: strip, said portion beingl'prd titled with means forspiieed-ing apart-1a pail o-tstrips of piping: carried by the tsp of the welt strip andfhavin'g, ah'andle' above t-hewelt strip. thepiece of metal having an opening between said postion-v and the handle for the passage of thewelt strip; l'n testimony whereof- Iaffix mylsignature.

LEON ELLSVVORTH HILL. 

